This PHP image handling script acts as an advanced, lightweight, object-oriented image manipulation library. several types of image manipulation operations are provided requires no any external libraries but just the GD2 extension.

Zebra_Image script is designed to rescale, flip, rotate and crop images. It supports supports loading and saving images in the JPEG, GIF and PNG formats, while preserving transparency for PNG, GIF and PNG24. This script can also resize images to exact given width and height and still maintain aspect ratio.

Requirements:
- PHP 4.4.9 or Higher

What's new in this version:
- A new property is now available: png_compression, which determines the compression level of PNG files; this value of this property is ignored for PHP versions older than 5.1.2;
- A new property is now available: sharpen_images which, when enabled, will instruct the script to apply a “sharpen” filter to the resulting images; can be very useful when creating thumbnails but should be used only when creating thumbnails; the sharpen filter relies on PHP’s imageconvolution function which is available only for PHP version 5.1.0+, and will leave the images unaltered for older versions;
- Added new cropping options: TOPCENTER, TOPRIGHT, MIDDLELEFT, MIDDLERIGHT, BOTTOMLEFT, BOTTOMCENTER, BOTTOMRIGHT;
- Entire logic behind the resize method was rewritten;
- Fixed a bug where the script would generate warnings if the chmod function was disabled via PHP configuration options; now it will not generate the warning but instead will set a value for the script’s error property;
- Fixed a bug where if one would resize a transparent image and in the process would convert it to a JPEG (no transparency) and the resize method’s background_color argument was set to -1, the resulted image’s background color would be black; now it is white, as described in the documentation;